APA (7 वां संस्करण) प्रशस्ति पत्र

Camp, W. G., & Donahue, R. L. (1994). Environmental science: For agriculture and the life sciences. Delmar Publishers.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Camp, William G., और Roy Luther Donahue. Environmental Science: For Agriculture and the Life Sciences. Albany, NY: Delmar Publishers, 1994.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Camp, William G., और Roy Luther Donahue. Environmental Science: For Agriculture and the Life Sciences. Delmar Publishers, 1994.